China’s Landspace Aims to Build a Stainless Steel Rocket

Chinese startup Landspace has revealed its ambitious plans to create a reusable stainless steel rocket, named Zhuque-3 (Vermillion Bird 3). The announcement, made by Landspace CEO Zhang Changwu at the Mingyue Lake Aerospace Information Industry International Ecosystem Event in Chongqing on Nov. 21, outlined key features of the rocket.

The Zhuque-3 will incorporate stainless propellant tanks and clusters of Tianque methane-liquid oxygen propellant rocket engines. This two-stage launcher is designed to have a payload capacity of 20 metric tons to low Earth orbit (LEO) in its expendable form. However, recovering the first stage downrange will enhance its capabilities, allowing for 16.5 tons to LEO, while a landing back at the launch site will enable a capacity of 11 tons to LEO. A visual representation of the rocket depicts grid fins and deployable landing legs on the first stage.

Notably, the announcement closely followed SpaceX second Starship/Super Heavy launch test, showcasing the dynamic competition in the space launch industry. Despite the unveiling, specific details such as a tentative test launch date and the rocket dimensions remain undisclosed, indicating that the project is in its early stages.

The development of this stainless steel rocket poses significant challenges related to the material weight and properties, introducing complexities in manufacturing and fabrication. Once operational, Zhuque-3 will face domestic competition, particularly from Space Pioneer, a fellow startup planning to launch its Tianlong-3 rocket next year, capable of lifting 17 tons to LEO.

The emergence of reusable liquid propellant rockets reflects a broader trend in China commercial launch sector, where companies like iSpace, Galactic Energy, Space Pioneer, and Deep Blue Aerospace are actively working on such technologies. Moreover, these companies are eyeing contracts to launch satellite batches for China national satellite internet megaconstellation project, Guowang.

Landspace, established in 2015 as one of China pioneering commercial launch companies, is currently preparing for the upcoming launch of its third Zhuque-2 methane-liquid oxygen rocket on Dec. 4 Eastern. Despite facing setbacks, including a failed Zhuque-2 launch in December 2022, the company successfully reached orbit in July, becoming the first to achieve this feat with a methalox launcher.

The company commitment to innovation is evident in its establishment of an intelligent manufacturing base in Huzhou, Zhejiang Province, and a $1.5 billion medium and large-scale liquid rocket assembly and test plant in Jiaxing. Landspace foray into reusable stainless steel rockets aligns with a broader trend in China, with other startups like Space Epoch also conducting hot fire tests for a similar concept.

Even China major space contractor, the state-owned China Aerospace Science and Technology Corp. (CASC), has signaled plans for a fully reusable super heavy-lift Long March 9. This collective momentum underscores the rapid evolution and expansion of China commercial space industry, responding to global developments in the space sector.